Circuit block for power supply



FIG. 1 is a front perspective view of the circuit block for power supply showing our new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a bottom plan view; and,

FIG. 6 is a right-side elevational view.

The left-side elevational view is symmetry of the right-side elevational view. 

The ornamental design for a circuit block for power supply, as shown and described. 